C++ Game Engine – Esenthel Game Engine
The word Esenthel is made by combining two words i.e. Essential and Essence. It is an open source game engine for developing commercial and noncommercial games (it is not Free, there are some limitations, i.e. its code cannot be used to create/improve other game engines.). It is written in C++ and is very easy to use. It uses very clean APIs. It is in development since 2000.
DX Studio
DX Studio produced by Worldweaver Ltd is an integrated development tool used to build 3D video games, simulations, or real-time interactive applications for either standalone, web-based, Microsoft Office or Visual Studio use. Written in C++, DX Studio is available to users in both standard and professional editions.
CryEngine – Game Engine written in C++
CryEngine is a powerful gaming engine written in C++, Lua and C#. This Engine was originally developed by German game developer Crytex. In 2000, the Crytex made partnership with Ubisoft that actually accelerated its growth. The first version of FarCry game was launched in 2004 and the engine was made available under a license. FarCry is still one of the best first person games in general.
Dunia Game Engine
The Dunia Engine is a software fork of CryEngine designed by Kirmaan Aboobaker while working at Crytek. Sharing the source code of CryEngine, the Ubisoft Montréal development team heavily modified it for use in Far Cry 2. A revamped and revised version of the Dunia Engine is utilized for James Cameron’s Avatar: The Game. Assassin’s Creed II and Assassin’s Creed: Brotherhood also uses Far Cry 2’s foliage technology.
Dimensional 3 – 3D Open Source Game Engine
Dimensional3 is an open-source 3D game engine often written as Dim3. Apple has chosen Dim3 as an exclusive development engine for Mac OS and described it as “hot game building tools”. Dim3 has access to DevMaster’s 3D engines database. Written in C++ the engine uses OpenGL libraries for graphics rendering, JavaScript for scripting, XML for data and Simple Direct Media Layer for resolution switching, input, and sound.